Category Archives: Enterobacteriaceae

RASFF Alerts – Animal Feed – Enterobacteriaceae – Fish Meal

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RASFF – too high count of Enterobacteriaceae (380 CFU/g) in fish meal from Portugal in Spain

RASFF Alert – E.coli – Enterobacteriaceae – Black Cumin Cheese

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RASFF – absence of labelling (allergens, nutritional information) and of expiry date on and high counts of Enterobacteriaceae (1.6E7 CFU/g) and of Escherichia coli (6.7E6 CFU/g) in black cumin cheese from the Netherlands in Germany

Research – Microbiological Quality of Cooked Chicken: Results of Monitoring in England (2013-17)

JFP

Results from monitoring of the microbiological quality of 2,721 samples of ready-to-eat cooked chicken collected between 2013 to 2017 in England were reviewed: 70% of samples were from retail, catering or manufacture and 30% were imported and collected at English ports. Samples were tested for a range of bacterial pathogens and indicator organisms. Six samples (<1%) had unsatisfactory levels of pathogens which were potentially injurious to health. Neither Salmonella nor Campylobacter were recovered from any sample. Two samples from catering settings contained either an unsatisfactory level of Bacillus cereus (5 x 10 6 CFU/g) or an unsatisfactory level of coagulase positive staphylococci (1.6 x 10 4 CFU/g). Listeria monocytogenes was recovered from 36 samples (one at manufacture, 26 at catering and nine at retail) and in four instances, unsatisfactory levels (≥10 2 CFU/g) were detected (three samples collected at catering and one at retail). For L. monocytogenes there were no significant differences between the rates of contamination with between the samples collected from ports, manufacture, retail supermarkets and other retailers (p = 0.288). There were no differences between the rates of contamination for other potential pathogens detected between samples from different settings. The prevalence of hygiene indicators ( Escherichia coli , Enterobacteriaceae and Aerobic Colony Counts) at import was significantly lower than in samples collected from manufacturers, retail or catering (p < 0.01). Samples collected from catering gave poorer results than all other settings. Regardless of the stage in the food chain, samples from Thailand and from other non-EU countries were of significantly better microbiological quality with respect to indicator organisms than those from the UK or from other EU countries (p = <0.001).

RASFF Alert – Animal Feed – Enterobacteriaceae – Frozen Raw Pet Food

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RASFF – too high count of Enterobacteriaceae (between 3600 and 8400 CFU/g) in frozen raw pet food from Austria in Slovenia

RASFF Alert – Enterobacteriaceae -Frozen Dog Raw Feed

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RASFF – too high count of Enterobacteriaceae (43000 CFU/g) in frozen dog raw feed from the United Kingdom in Slovenia

 

RASFF Alert – Animal Feed – Enterobacteriaceae – Fish Meal

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RASFF – high count of Enterobacteriaceae (up to 340 CFU/g) in fish meal from Mauritania in Spain

Research – Effect of Peracetic Acid Solutions and Lactic Acid on Microorganisms in On-Line Reprocessing Systems for Chicken Slaughter Plants

Journal of Food Protection

ABSTRACT

During poultry slaughter and processing, microbial cross-contamination between individual chickens is possible, as well as from one slaughter animal to the next without direct contact. One option for reducing the risk of cross-contamination is to decrease the number of microorganisms on contact surfaces by using disinfectants. The aim is to decontaminate the surfaces coming into direct contact with the carcasses. In the present study, the effectiveness of different disinfectants was investigated in laboratory settings, simulating the conditions in the slaughterhouses and in a chicken slaughterhouse. For this, an artificial residue substance (consisting of yeast extract, albumin, and agar) was developed, tested, and included in the assays. Two disinfectants were tested under laboratory conditions: lactic acid (5 and 6.67%) and peracetic acid (0.33 and 0.5%). At the slaughterhouse, peracetic acid (0.021%) was used. In the laboratory tests, it was found that the peracetic acid solution had the highest disinfection potential with respect to an Escherichia coli strain (reduction >4 log CFU mL−1) at 0.5% without an artificial residue substance. The tested lactic acid solutions also showed the highest disinfection potential against a Pseudomonas aeruginosa strain, without an artificial residue substance. When applying the artificial residue substance, the reduction potential of lactic acid and peracetic acid was decreased to less than 1.4 log CFU mL−1. Application of peracetic acid in the slaughterhouse reduced the number of total aerobic bacteria by more than 4 log CFU mL−1 and the number of Enterobacteriaceae by more than 3 log CFU mL−1, depending on the place of sampling.

HIGHLIGHTS
  • Peracetic acid and lactic acid decreases E. coli and P. aeruginosa numbers in vitro.
  • Sanitation in place reduces the number of bacteria in a chicken slaughterhouse.
  • The number of total aerobic bacteria and Enterobacteriaceae was significantly reduced.

RASFF Alert- High Bacterial and Enterobacteriaceae – Short Pig Intestines

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RASFF – high bacterial count (8.3x10E8 CFU/g) and high count of Enterobacteriaceae (4.9x10E6 CFU/g) in frozen short pig intestines from Poland unfit for human consumption (untreated) in Germany

RASFF Alert- Enterobacteriaceae – Ground Almonds

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RASFF – high count of Enterobacteriaceae (70000 CFU/g) in ground almonds from Germany in Austria

RASFF Alerts – Animal Feed -Enterobacteriaceae – Dog Chews

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RASFF – high count of Enterobacteriaceae (1, 7.7, 18, 84, 25 CFU/g) in dog chews from China in Spain